Organisers said that by the end of last year's event 2,980kg of waste on the site - 80% of all rubbish generated - was recycled or sent to a biogradable waste digester.

The overall effort earned HebCelt a highly commended award in the 2018 A Greener Festival Awards, the only Scottish festival to pick up a prize.

HebCelt director Caroline Maclennan said: "We are blessed to have an outstanding and unique environment in which to stage HebCelt and we have always taken very seriously the need to protect our surroundings.

"We have been ahead of the game in many respects, such as banning plastic straws five years ago and introducing a ban on single-use plastic last year. We have also made huge strides in cutting waste and using biodegradable and recycled material.

"But we want to continue to improve our actions and spread the word amongst our audience, artists and contractors."

Image copyrightThe ShiresImage caption
The Shires are also appearing at 2019's HebCelt

This year's festival, which begins later on Wednesday, features a new initiative.

Western Isles housing and energy agency, Tighean Innse Gall, will be offering festival-goers advice on how they can become more environmentally friendly and make their homes energy efficient.

HebCelt was first held in 1996.

This year's acts include KT Tunstall, The Shires, Newton Faulkner and Tide Lines.

Image copyrightTide LinesImage caption
The line up includes Tide Lines